QwFakeHelicity.h

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/*!
 * \file   QwFakeHelicity.h
 * \brief  Fake helicity generator using pregenerated random seeds
 * \author B.Waidyawansa
 * \date   2010-03-06
 */
/**
  The QwFakeHelicity class uses a pregenerated random seed to generate
  the fake helicity signal that then can be used to perform helicity
  related calculations.
*/
 
#pragma once
 
#include "QwHelicity.h"
 
/**
 * \class QwFakeHelicity
 * \ingroup QwAnalysis_BL
 * \brief Helicity source that generates a reproducible sequence from seeds
 *
 * Used for testing and simulations when real helicity decoding is not
 * available. Inherits the helicity interface and overrides event handling.
 */
class QwFakeHelicity: public QwHelicityBase {
 
 public:
  QwFakeHelicity(TString region_tmp):VQwSubsystem(region_tmp),QwHelicityBase(region_tmp),fMinPatternPhase(1)
 
    {
      // using the constructor of the base class
    };
 
    ~QwFakeHelicity() override { };
 
    /// Inherit assignment operator on base class
    using QwHelicityBase::operator=;
 
    void    ClearEventData() override;
    Bool_t  IsGoodHelicity() override;
    void    ProcessEvent() override;
 
    Bool_t CheckForBurpFail(const VQwSubsystem *subsys) override{
      return kFALSE;
    };
 
 protected:
    Int_t fMinPatternPhase;
 
    Bool_t CollectRandBits() override;
    UInt_t GetRandbit(UInt_t& ranseed) override;
 
};
 
// Register this subsystem with the factory
REGISTER_SUBSYSTEM_FACTORY(QwFakeHelicity);